1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
/* $OpenBSD: panel.c,v 1.3 1997/12/03 05:17:56 millert Exp $ */
/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* panels is copyright (C) 1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* All praise to the original author, Warren Tucker. *
* *
* Permission is hereby granted to reproduce and distribute panels *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of panels in any *
* applications linked with it is highly appreciated. *
* *
* panels comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/* panel.c -- implementation of panels library, some core routines */
#include "panel.priv.h"
MODULE_ID("Id: panel.c,v 1.14 1997/10/18 18:34:31 tom Exp $")
#ifdef TRACE
#ifndef TRACE_TXT
const char *_nc_my_visbuf(const void *ptr)
{
char temp[40];
if (ptr != 0)
snprintf(temp, sizeof(temp), "ptr:%p", ptr);
else
strcpy(temp, "<null>");
return _nc_visbuf(temp);
}
#endif
#endif
/*+-------------------------------------------------------------------------
dPanel(text,pan)
--------------------------------------------------------------------------*/
#ifdef TRACE
void
_nc_dPanel(const char *text, const PANEL *pan)
{
_tracef("%s id=%s b=%s a=%s y=%d x=%d",
text, USER_PTR(pan->user),
(pan->below) ? USER_PTR(pan->below->user) : "--",
(pan->above) ? USER_PTR(pan->above->user) : "--",
pan->wstarty, pan->wstartx);
}
#endif
/*+-------------------------------------------------------------------------
dStack(fmt,num,pan)
--------------------------------------------------------------------------*/
#ifdef TRACE
void
_nc_dStack(const char *fmt, int num, const PANEL *pan)
{
char s80[80];
snprintf(s80,sizeof(s80),fmt,num,pan);
_tracef("%s b=%s t=%s",s80,
(_nc_bottom_panel) ? USER_PTR(_nc_bottom_panel->user) : "--",
(_nc_top_panel) ? USER_PTR(_nc_top_panel->user) : "--");
if(pan)
_tracef("pan id=%s", USER_PTR(pan->user));
pan = _nc_bottom_panel;
while(pan)
{
dPanel("stk",pan);
pan = pan->above;
}
}
#endif
/*+-------------------------------------------------------------------------
Wnoutrefresh(pan) - debugging hook for wnoutrefresh
--------------------------------------------------------------------------*/
#ifdef TRACE
void
_nc_Wnoutrefresh(const PANEL *pan)
{
dPanel("wnoutrefresh",pan);
wnoutrefresh(pan->win);
}
#endif
/*+-------------------------------------------------------------------------
Touchpan(pan)
--------------------------------------------------------------------------*/
#ifdef TRACE
void
_nc_Touchpan(const PANEL *pan)
{
dPanel("Touchpan",pan);
touchwin(pan->win);
}
#endif
/*+-------------------------------------------------------------------------
Touchline(pan,start,count)
--------------------------------------------------------------------------*/
#ifdef TRACE
void
_nc_Touchline(const PANEL *pan, int start, int count)
{
char s80[80];
snprintf(s80,sizeof(s80),"Touchline s=%d c=%d",start,count);
dPanel(s80,pan);
touchline(pan->win,start,count);
}
#endif
/*+-------------------------------------------------------------------------
__panels_overlapped(pan1,pan2) - check panel overlapped
--------------------------------------------------------------------------*/
static INLINE bool
__panels_overlapped(register const PANEL *pan1, register const PANEL *pan2)
{
if(!pan1 || !pan2)
return(FALSE);
dBug(("__panels_overlapped %s %s", USER_PTR(pan1->user), USER_PTR(pan2->user)));
/* pan1 intersects with pan2 ? */
if( (((pan1->wstarty >= pan2->wstarty) && (pan1->wstarty < pan2->wendy)) ||
((pan2->wstarty >= pan1->wstarty) && (pan2->wstarty < pan1->wendy))) &&
(((pan1->wstartx >= pan2->wstartx) && (pan1->wstartx < pan2->wendx)) ||
((pan2->wstartx >= pan1->wstartx) && (pan2->wstartx < pan1->wendx)))
) return(TRUE);
else {
dBug((" no"));
return(FALSE);
}
}
/*+-------------------------------------------------------------------------
_nc_free_obscure(pan)
--------------------------------------------------------------------------*/
void
_nc_free_obscure(PANEL *pan)
{
PANELCONS *tobs = pan->obscure; /* "this" one */
PANELCONS *nobs; /* "next" one */
while(tobs)
{
nobs = tobs->above;
free((char *)tobs);
tobs = nobs;
}
pan->obscure = (PANELCONS *)0;
}
/*+-------------------------------------------------------------------------
__override(pan,show)
--------------------------------------------------------------------------*/
void
_nc_override(const PANEL *pan, int show)
{
int y;
PANEL *pan2;
PANELCONS *tobs = pan->obscure; /* "this" one */
dBug(("_nc_override %s,%d", USER_PTR(pan->user),show));
switch (show)
{
case P_TOUCH:
Touchpan(pan);
/* The following while loop will now mark all panel window lines
* obscured by use or obscuring us as touched, so they will be
* updated.
*/
break;
case P_UPDATE:
while(tobs && (tobs->pan != pan))
tobs = tobs->above;
/* The next loop will now only go through the panels obscuring pan;
* it updates all the lines in the obscuring panels in sync. with
* the lines touched in pan itself. This is called in update_panels()
* in a loop from the bottom_panel to the top_panel, resulting in
* the desired update effect.
*/
break;
default:
return;
}
while(tobs)
{
if((pan2 = tobs->pan) != pan) {
dBug(("test obs pan=%s pan2=%s", USER_PTR(pan->user), USER_PTR(pan2->user)));
for(y = pan->wstarty; y < pan->wendy; y++) {
if( (y >= pan2->wstarty) && (y < pan2->wendy) &&
((is_linetouched(pan->win,y - pan->wstarty) == TRUE)) )
Touchline(pan2,y - pan2->wstarty,1);
}
}
tobs = tobs->above;
}
}
/*+-------------------------------------------------------------------------
__calculate_obscure()
--------------------------------------------------------------------------*/
void
_nc_calculate_obscure(void)
{
PANEL *pan;
PANEL *pan2;
PANELCONS *tobs; /* "this" one */
PANELCONS *lobs = (PANELCONS *)0; /* last one */
pan = _nc_bottom_panel;
while(pan)
{
if(pan->obscure)
_nc_free_obscure(pan);
dBug(("--> __calculate_obscure %s", USER_PTR(pan->user)));
lobs = (PANELCONS *)0; /* last one */
pan2 = _nc_bottom_panel;
/* This loop builds a list of panels obsured by pan or obscuring
pan; pan itself is in the list; all panels before pan are
obscured by pan, all panels after pan are obscuring pan. */
while(pan2)
{
if(__panels_overlapped(pan,pan2))
{
if(!(tobs = (PANELCONS *)malloc(sizeof(PANELCONS))))
return;
tobs->pan = pan2;
dPanel("obscured",pan2);
tobs->above = (PANELCONS *)0;
if(lobs)
lobs->above = tobs;
else
pan->obscure = tobs;
lobs = tobs;
}
pan2 = pan2->above;
}
_nc_override(pan,P_TOUCH);
pan = pan->above;
}
}
/*+-------------------------------------------------------------------------
_nc_panel_is_linked(pan) - check to see if panel is in the stack
--------------------------------------------------------------------------*/
bool
_nc_panel_is_linked(const PANEL *pan)
{
/* This works! The only case where it would fail is, when the list has
only one element. But this could only be the pseudo panel at the bottom */
return ( ((pan->above!=(PANEL *)0) ||
(pan->below!=(PANEL *)0) ||
(pan==_nc_bottom_panel)) ? TRUE : FALSE );
}
/*+-------------------------------------------------------------------------
__panel_link_bottom(pan) - link panel into stack at bottom
--------------------------------------------------------------------------*/
void
_nc_panel_link_bottom(PANEL *pan)
{
#ifdef TRACE
dStack("<lb%d>",1,pan);
if(_nc_panel_is_linked(pan))
return;
#endif
pan->above = (PANEL *)0;
pan->below = (PANEL *)0;
if(_nc_bottom_panel)
{ /* the stdscr pseudo panel always stays real bottom;
so we insert after bottom panel*/
pan->below = _nc_bottom_panel;
pan->above = _nc_bottom_panel->above;
if (pan->above)
pan->above->below = pan;
_nc_bottom_panel->above = pan;
}
else
_nc_bottom_panel = pan;
if(!_nc_top_panel)
_nc_top_panel = pan;
assert(_nc_bottom_panel == _nc_stdscr_pseudo_panel);
_nc_calculate_obscure();
dStack("<lb%d>",9,pan);
}
|
